5 Best HVAC Services in Round Rock (2026)

Ranked by real Google ratings and review volume · How we chose

By Brad Smith, Home Services Expert · ✓ Updated October 2026 · 8 min read

We compared 19 HVAC services in Round Rock on Google Maps · 5 listed · How we rank

In a Central Texas summer, a dead air conditioner turns into a same-day problem. The HVAC services in Round Rock below carry more than 7,200 Google reviews between them, every one rated 4.8 or 4.9, so the useful questions are practical: who also handles plumbing and electrical, who offers a maintenance plan, and which address is actually in town. One firm sits on RM 620 in northwest Austin, not in Round Rock.

Short answer: Blue Ribbon Cooling, Heating, Plumbing, & Electrical has the biggest review base, rated 4.9 from more than 2,900 Google reviews, and covers HVAC alongside plumbing and electrical. Koala Cooling & Plumbing: HVAC Department (4.9) and Airco (4.8) both draw praise for system replacements. Prices vary by system and home, so get a written quote that names the equipment.

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1. Blue Ribbon Cooling, H…
2. Kinsey Plumbing, Heati…
3. Koala Cooling & Plumbi…
4. Airco Air Conditioning…
5. Trusted Heating and Co…
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HVAC Contractors Around Round Rock, Side by Side

#	Business	Rating	Reviews	Best for
1	Blue Ribbon Cooling, Heating, Plumbing, & Electrical	4.9 ★	2,915	One company for HVAC, plumbing and electrical	View ›
2	Kinsey Plumbing, Heating and Air	4.8 ★	1,505	System replacements with a warranty	View ›
3	Koala Cooling & Plumbing: HVAC Department	4.9 ★	1,058	Maintenance visits and AC tune-ups	View ›
4	Airco Air Conditioning, Electrical and Plumbing	4.8 ★	1,093	New systems, ductwork and breaker fixes	View ›
5	Trusted Heating and Cooling, LLC	4.9 ★	706	Fast repairs from a family-run shop	View ›

5 Best HVAC Services in Round Rock (2026)

The HVAC companies, reviewed

#1 Overall🕑 Open 6 days/wk↩ Responds to reviews

Blue Ribbon Cooling, Heating, Plumbing, & Electrical

4.92,915 Google reviews

Blue Ribbon Cooling, Heating, Plumbing, & Electrical is listed on Google as an HVAC contractor, with plumbing and electrical work alongside it. Its Round Rock page lists AC repair, water heater, drain and sewer, and electrical work, and promotes a membership club, online booking and financing. Reviewers describe an AC system update with a UV light add-on, water heater and faucet jobs, and HVAC diagnostics, and Google hours run Monday through Saturday.

What people praise

Technicians who explain options and recommendations clearly
Fast response, including a water heater replaced when a guest was staying
Several repeat customers describe work over a year or more
Same-day diagnosis of an HVAC concern in one review

Worth knowing

Many reviews are about plumbing, so ask for an HVAC technician when you book

Reputation scorecardrank in Round Rock

Rating4.9 / 5

Review volume2,915 · 97th

Confidencevery high

Recency4 months ago

Info completenesssite · phone · hours

Rating breakdown95% 5-star

✓ VerifiedSource: Google

Our take: A sensible first call if your heating and cooling might connect to other home systems. It has the deepest review history on this page.

Website Book now +1512-883-1975 Directions

3121 Eagles Nest St #150, Round Rock, TX 78665

#2🕑 Open 7 days↩ Responds to reviews

Kinsey Plumbing, Heating and Air

4.81,505 Google reviews

Kinsey Plumbing, Heating and Air is listed as an HVAC contractor with a Round Rock shop on Wonder Drive. Its site lists whole-home heating, heat pumps, boilers, furnaces, air conditioning, mini splits, air purification and tune-ups, alongside plumbing, and advertises 24/7 emergency availability. Reviewers describe AC and HVAC replacements, a fast HVAC repair and a combined HVAC and water heater job.

What people praise

Installers who finished faster than the customer expected
Technicians who walk customers through each step and show before-and-after photos
A reviewer cites a 10-year warranty on a system and water heater replacement
Quick response on an HVAC repair

Worth knowing

One reviewer called a system replacement not cheap, though worth it to them

Reputation scorecardrank in Round Rock

Rating4.8 / 5

Review volume1,505 · 92nd

Confidencevery high

Recency7 weeks ago

Info completenesssite · phone · hours

Rating breakdown93% 5-star

✓ VerifiedSource: Google

Our take: A solid choice for replacing a system in an older home. Plumbing and HVAC under one roof is useful if the project touches both.

Website Book now +1512-759-8439 Directions

1107 Wonder Dr #102, Round Rock, TX 78681

#3🕑 Open 7 days↩ Responds to reviews

Koala Cooling & Plumbing: HVAC Department

4.91,058 Google reviews

Koala Cooling & Plumbing: HVAC Department is the heating and cooling side of Koala Cooling & Plumbing, on South Industrial Boulevard in Round Rock. Its site lists AC repair and replacement, heat pumps and furnace service for Round Rock, Austin, Pflugerville and Cedar Park, and advertises 24/7 service. Reviewers describe AC maintenance visits, condensate drain clearing, HVAC repairs for a new condo and a replacement job.

What people praise

Friendly office staff who answer questions and book quickly
Techs who explain regular system care during maintenance visits
Careful about clearing difficult condensate drain clogs, per one reviewer
Customers describe fair, reasonable pricing

Worth knowing

A club-style maintenance program is mentioned in the owner's replies, so ask what is included before you join

Reputation scorecardrank in Round Rock

Rating4.9 / 5

Review volume1,058 · 82nd

Confidencevery high

Recency6 weeks ago

Info completenesssite · phone · hours

Rating breakdown96% 5-star

✓ VerifiedSource: Google

Our take: Its reviews lean toward maintenance and repair visits, which suits homeowners who want a regular tune-up relationship. Ask about the maintenance program details.

Website Book now +1512-759-8800 Directions

1102 S Industrial Blvd Ste C, Round Rock, TX 78681

#4🕑 Open 7 days↩ Responds to reviews

Airco Air Conditioning, Electrical and Plumbing

4.81,093 Google reviews

Airco Air Conditioning, Electrical and Plumbing, on the I-35 frontage road in Round Rock, handles air conditioning, ductless systems, ducts, furnaces, heat pumps, indoor air quality, zoning and new construction, with electrical and plumbing as well. Its site also lists a residential maintenance membership and financing. Reviewers describe new Lennox and Daikin installs, ducting corrections, an attic line reroute and a breaker upgrade done alongside an AC replacement.

What people praise

Install crews that left the attic and outside tidy
Easy online appointments and a quick turnaround on a replacement
Technicians who spotted a breaker too small for a new system and swapped it
A salesperson who didn't push extras, according to one reviewer

Worth knowing

A big install can take several days, as one three-day job shows

Reputation scorecardrank in Round Rock

Rating4.8 / 5

Review volume1,093 · 87th

Confidencevery high

Recency6 weeks ago

Info completenesssite · phone · hours

Rating breakdown92% 5-star

✓ VerifiedSource: Google

Our take: A good fit when a replacement also needs duct fixes or electrical changes. Its reviews describe thorough follow-through on larger jobs.

Website Book now +1512-537-1234 Directions

1000 S I-35 Frontage Rd, Round Rock, TX 78681

#5🕑 Open 7 days↩ Responds to reviews

Trusted Heating and Cooling, LLC

4.9706 Google reviews

Trusted Heating and Cooling, LLC is an HVAC contractor whose Google address is on RM 620 in northwest Austin. Its site covers HVAC services in Austin and the surrounding area, says it started in 2013, and cites an A+ BBB rating. Reviewers describe an after-hours AC repair, a Sunday call that ended with a fan motor replaced the next day, and full system replacements, and one mentions a maintenance program.

What people praise

Reviewers describe quick turnaround, including same-day and after-hours calls
A reviewer says the owner gave several system options without upselling
Clear communication from the scheduling staff and technicians
Customers call the family-run feel a plus

Worth knowing

The address is in Austin, so ask whether it serves your Round Rock street

Reputation scorecardrank in Round Rock

Rating4.9 / 5

Review volume706 · 76th

Confidencevery high

Recency3 months ago

Info completenesssite · phone · hours

Rating breakdown96% 5-star

✓ VerifiedSource: Google

Our take: Worth a call for urgent repairs if you are on the south side of Round Rock. Confirm service to your address before booking.

Website +1512-881-7484 Directions

16238 Ranch to Market Rd 620 f396, Austin, TX 78717

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How the scorecards work

Rating is each business’s live Google star average. Review volume is how many customers have rated it, compared across the HVAC companies on this page. Confidence weighs the rating by that volume, so a 4.8 from over a thousand customers carries more weight than a 4.9 from a few dozen. Recency shows how recently customers are still reviewing. No business can pay to change these numbers.

What drives HVAC pricing in Round Rock

We found no trustworthy local price list for Round Rock HVAC work, so there is no cost table. A tune-up and a full system replacement sit in very different price brackets. The size of the home, the equipment brand, whether ducts need repair and whether the electrical panel can support a new unit all move the total. Ask each company to name the equipment and itemize any duct or breaker work in the quote.

HVAC help near you in Round Rock

Blue Ribbon, Kinsey, Koala and Airco list Round Rock addresses, in the 78665 and 78681 ZIP codes. Koala’s site names Round Rock, Austin, Pflugerville and Cedar Park, and Kinsey’s lists Cedar Park, Georgetown, Hutto, Leander and Pflugerville. Searching for an HVAC company near me? Each card shows a phone number and map link.

What to ask an HVAC company before booking

Is the quote itemized, with the equipment brand and model named?
Will you check the ductwork and the electrical breaker for the new unit?
What does the warranty cover on parts and labor?
Is there a maintenance plan, and what exactly is included in the fee?
Do you charge extra for evening and weekend calls?

Frequently asked questions

Which of these HVAC companies also do plumbing and electrical work?

Blue Ribbon and Airco list HVAC, plumbing and electrical in their names and on their sites. Kinsey adds plumbing to heating and air, and Koala’s name pairs cooling with plumbing, though this listing is its HVAC department.

Is Trusted Heating and Cooling in Round Rock?

Its Google address is on RM 620 in Austin, and its site describes service in Austin and the surrounding area. Ask whether it covers your Round Rock address and whether there’s a trip fee.

Do any of these companies fix ducts or breakers during a system install?

One Airco reviewer describes correcting poor builder ducting during a new Lennox install, and another says the crew replaced an undersized breaker so the new system could run safely. Ask any company whether duct and electrical checks are part of a replacement quote.

Which Round Rock HVAC companies offer maintenance plans?

Blue Ribbon’s site promotes a membership club and Airco’s lists a residential maintenance membership. Koala’s owner replies mention a club that includes drain-line clearing at maintenance visits, and a Trusted reviewer says they signed up for its maintenance program.

Where to start

Blue Ribbon is the safest default for most Round Rock homes, with the largest review base on the page. Airco and Kinsey are strong picks for full replacements, and Koala suits homeowners who want regular maintenance visits. Get the quote in writing with the equipment named.

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